70% of a number is equal to four-fifth of another number. If the difference between the two numbers is 100, what is the bigger number ?
Let the two numbers be X and Y.
So, 70%*X = 4/5*Y = 80%*Y
Therefore, 7X = 8Y
It also given that X-Y =100.
Hence, 7X-7Y = 700. But 7X=8Y
Therefore, 8Y-7Y = 700 or Y=700
Hence, the bigger number equals Y+100 = 800
Create a FREE account and get:
Day-wise Structured & Planned Preparation Guide
By proceeding you agree to create your account
Free CAT Schedule PDF will be sent to your email address soon !!!
